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Comparative results with different cochlear implants

O Ribári1, M Küstel, K Speer

  • 1Semmelweis Medical University, ORL Clinic Budapest, Hungary.

Acta Oto-Laryngologica
|March 1, 1997
PubMed
Summary
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Budapest

Area of Science:

  • Otolaryngology
  • Audiology
  • Biomedical Engineering

Background:

  • The cochlear implant program in Budapest commenced in 1985.
  • Over 60 cochlear implant operations have been conducted, including procedures on children.
  • A variety of implantation techniques and speech processor technologies have been employed over time.

Purpose of the Study:

  • To review the historical development and outcomes of the cochlear implant program in Budapest.
  • To analyze the diverse range of cochlear implant devices, surgical techniques, and speech processing strategies utilized.
  • To evaluate the audiological performance of cochlear implant recipients, including speech understanding and sound field thresholds.

Main Methods:

  • Retrospective analysis of 60 cochlear implant surgeries performed between 1985 and the present.

Related Experiment Videos

  • Categorization of procedures by patient age (pediatric vs. adult), implantation type (primary vs. reimplantation), and surgical approach (extracochlear vs. intracochlear).
  • Review of speech processor evolution, from early digital pulsatile systems to current Continuous Interleaved Sampling (CIS) strategy-based processors.
  • Inclusion of audiological assessments, such as speech understanding tests and warble tone sound field thresholds, for performance evaluation.

    • Main Results:

    • Sixty cochlear implant operations were performed, with 14 on children (51 primary, 9 reimplantations).
    • Diverse surgical techniques (extracochlear promontory, extracochlear round window, intracochlear) and speech processors (digital pulsatile, analog, CIS strategy) were utilized.
    • Positive outcomes included contralateral hearing improvement in several cases and experience with unique patient profiles (deaf-blind child, prelingual twins).

    Conclusions:

    • The Budapest cochlear implant program has accumulated extensive experience with various devices, techniques, and patient populations since 1985.
    • The evolution of speech processing strategies, particularly the adoption of CIS, has likely contributed to improved outcomes.
    • Comprehensive audiological evaluation, including sound field testing, is crucial for assessing cochlear implant efficacy.